Submission #625110

#	Time	Username	Problem	Language	Result	Execution time	Memory
625110		alexander707070	Seats (IOI18_seats)	C++14	Compilation error	0 ms	0 KiB

seats

#include<bits/stdc++.h>
#define MAXN 1000007
using namespace std;

int n,m;
pair<int,int> pos[MAXN];

int check(){
    int minx=n+1,maxx=0,miny=m+1,maxy=0,res=0;
    for(int i=1;i<=n*m;i++){
        minx=min(minx,pos[i].first);
        maxx=max(maxx,pos[i].first);
        miny=min(miny,pos[i].second);
        maxy=max(maxy,pos[i].second);
        if((maxx-minx)*(maxy-miny)==i)res++;
    }
    return res;
}

void give_initial_chart(int H, int W, int R[], int C[]){
    n=H; m=W;
    for(int i=0;i<n*m;i++){
        pos[i+1]={R[i],C[i]};
    }
}

int swap_seats(int a, int b){
    swap(pos[a],pos[b]);
    return check();
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cc5rriCo.o: in function `main':
grader.cpp:(.text.startup+0x22f): undefined reference to `give_initial_chart(int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status